In verifying the analyzer's range of response to different solvents, it’s best to obtain calibration data based on the response to solvent concentrations expressed in terms of LFL.
Do NOT use the following:
- Response factors based upon weight-percentages (such as milligram carbon per normal cubic meter), these may be deceptively close in response until they are translated into terms of %LFL
- Calibrations which are based upon calculations and have not been empirically tested and proven using actual solvent mixtures
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